Patents Assigned to RENEWELL ENERGY
  • Publication number: 20240376872
    Abstract: Methods and systems for gravity-based energy storage may utilize various controls. For example, a control system for a gravity well may include an active front end controller (AFE) configured to receive a plurality of reference signals and a plurality of target control parameters. The system may include a rate limiter coupled to the AFE controller and configured to adjust a rate of change associated with each of the plurality of target control parameters based, at least in part, on the plurality of reference signals. The system may include a speed control loop coupled to the AFE controller and configured to communicate with a variable-frequency drive (VFD), the VFD configured to store the plurality of target control parameters. The system may include an AFE component coupled to the AFE controller and configured to communicate with a grid based on the plurality of target control parameters.
    Type: Application
    Filed: May 9, 2024
    Publication date: November 14, 2024
    Applicant: RENEWELL ENERGY
    Inventors: Stefan James STRECKFUS, Samuel Albert SACKETT, Zachary WENRICK, Aaron MUNOZ, Anthony Kemp GREGORY
  • Publication number: 20240258878
    Abstract: Potential energy conversion systems include a movable mass suspended by a line in a non-producing well, in which the line is coupled to a motor operable to lift the movable mass and a generator operable to produce electricity when lowering the movable mass. A fluid fills at least a portion of the non-producing well, and a volume of the fluid is sufficient to immerse or fully immerse the movable mass when the movable mass is raised to an uppermost position in the non-producing well. A storage tank is configured to receive fluid displaced from the non-producing well as the movable mass is lowered from a higher location to a lower location in the non-producing well and to return the fluid to the non-producing well as the movable mass is raised from the lower location.
    Type: Application
    Filed: February 28, 2024
    Publication date: August 1, 2024
    Applicant: RENEWELL ENERGY
    Inventors: Walker Rowley COLT, Anthony Kemp GREGORY, JR., Stefan James STRECKFUS, Aaron MUNOZ
  • Patent number: 11920440
    Abstract: Potential energy conversion systems include a movable mass suspended by a line in a non-producing well, the line being coupled to a motor operable to lift the movable mass, and a generator operable to produce electricity when lowering the movable mass. Energy conversion methods include providing the potential energy conversion system; and storing potential energy by raising the movable mass, or releasing potential energy and converting the potential energy to electricity by lowering the movable mass.
    Type: Grant
    Filed: September 27, 2022
    Date of Patent: March 5, 2024
    Assignee: RENEWELL ENERGY
    Inventors: Walker Rowley Colt, Anthony Kemp Gregory, Jr., Stefan James Streckfus
  • Publication number: 20230020488
    Abstract: Potential energy conversion systems include a movable mass suspended by a line in a non-producing well, the line being coupled to a motor operable to lift the movable mass, and a generator operable to produce electricity when lowering the movable mass. Energy conversion methods include providing the potential energy conversion system; and storing potential energy by raising the movable mass, or releasing potential energy and converting the potential energy to electricity by lowering the movable mass.
    Type: Application
    Filed: September 27, 2022
    Publication date: January 19, 2023
    Applicant: RENEWELL ENERGY
    Inventors: Walter Rowley COLT, Anthony Kemp GREGORY, JR., Stefan James STRECKFUS
  • Patent number: 11492874
    Abstract: Potential energy conversion systems include a movable mass suspended by a line in a non-producing well, the line being coupled to a motor operable to lift the movable mass, and a generator operable to produce electricity when lowering the movable mass. Energy conversion methods include providing the potential energy conversion system; and storing potential energy by raising the movable mass, or releasing potential energy and converting the potential energy to electricity by lowering the movable mass.
    Type: Grant
    Filed: November 10, 2021
    Date of Patent: November 8, 2022
    Assignee: RENEWELL ENERGY
    Inventors: Walter Rowley Colt, Anthony Kemp Gregory, Jr., Stefan James Streckfus
  • Publication number: 20220065231
    Abstract: Potential energy conversion systems include a movable mass suspended by a line in a non-producing well, the line being coupled to a motor operable to lift the movable mass, and a generator operable to produce electricity when lowering the movable mass. Energy conversion methods include providing the potential energy conversion system; and storing potential energy by raising the movable mass, or releasing potential energy and converting the potential energy to electricity by lowering the movable mass.
    Type: Application
    Filed: November 10, 2021
    Publication date: March 3, 2022
    Applicant: RENEWELL ENERGY
    Inventors: Walter Rowley COLT, Anthony Kemp GREGORY, JR., Stefan James STRECKFUS